Electrical device with axial control

Abstract

Electrical device with axial control, such as switch, double-pole switch, toggle switch, inverter or the like, including a box-like containment structure ( 20 ) in insulating material, in which are housed: at least two connection terminals ( 31, 32 ), at least one fixed electrical contact ( 35 ) connected to one ( 31 ) of the connection terminals, at least one rocker arm element ( 36 ) carrying at least one mobile electrical contact ( 37 ) and connected electrically to another ( 32 ) of the connection terminals, and an axial actuation member ( 70 ) kinematically connected via a first oscillating support ( 50 ) to the rocker arm element ( 36 ), so as to make it oscillate between two predetermined stable positions, wherein on the first oscillating support ( 50 ) acts a second oscillating support ( 60 ) which is made to oscillate in one direction or in the other at each actuation of the axial actuation member ( 70 ).

The invention claimed is: 
     
       1. A pushbutton electrical device comprising:
 a box-like containment structure ( 20 ) in insulating material, in which are housed:
 at least two connection terminals ( 31 ,  32 ), 
 at least one fixed electrical contact ( 35 ) connected to one ( 31 ) of the connection terminals, 
 at least one rocker arm element ( 36 ) carrying at least one mobile electrical contact ( 37 ) and connected electrically to another ( 32 ) of the connection terminals, and 
 an axial actuation member ( 70 ) kinematically connected, by means of a first oscillating support ( 50 ), to said rocker arm element ( 36 ), so as to make it oscillate between two predetermined stable positions, 
 
 wherein, a second oscillating support ( 60 ) having the form of a substantially horizontal plate, with a lower central protuberance ( 61 ) resting on the first oscillating support ( 50 ), acts on said first oscillating support ( 50 ) which is made to oscillate in one direction or in the other at each actuation of said axial actuation member ( 70 ), 
 said actuation member ( 70 ) being provided with two downwardly protruding stems ( 74 ), suitable for alternately acting on one or the other of two opposite ends of said second oscillating support ( 60 ). 
 
     
     
       2. The device according to  claim 1 , wherein said box-like containment structure ( 20 ) comprises a base body ( 30 ) housing said connection terminals ( 31 ,  32 ) accessible through respective holes ( 33 ,  34 ) and the corresponding fixed contact ( 35 ) and mobile contact ( 37 ), and a mechanism holder box ( 40 ) attached to the base body ( 30 ) and housing components of the device. 
     
     
       3. The device according to  claim 2 , wherein said first oscillating support ( 50 ) is pivoted to said box ( 40 ) so as to be able to oscillate around a first axis (X) between two positions inclined in opposite directions corresponding to the two stable positions of said rocker arm element ( 36 ), and said second oscillating support ( 60 ) is pivoted to the first oscillating support ( 50 ) so as to oscillate around a second axis (X 1 ) parallel to the first axis (X),
 said second oscillating support ( 60 ) being normally held in horizontal position by said actuation member ( 70 ), at every pressure exerted on said actuation member ( 70 ), the second oscillating support ( 60 ) acting alternately on one of two opposite ends ( 53 ) of the first oscillating support ( 50 ) in order to cause the rotation thereof between the one and the other of said inclined positions. 
 
     
     
       4. The device according to  claim 1 , wherein a piston ( 55 ) is interposed between said at least one rocker arm element ( 36 ) and said first oscillating support ( 50 ), the piston ( 55 ) movable together with the first oscillating support ( 50 ) and held under pressure on the rocker arm element ( 36 ) by a spring means ( 57 ). 
     
     
       5. The device according to  claim 4 , wherein said piston ( 55 ) acts on said rocker arm element ( 36 ) by means of an articulated slide ( 56 ). 
     
     
       6. The device according to  claim 2 , wherein said actuation member ( 70 ) is held hooked in said mechanism holder box ( 40 ) by pairs of co-operating teeth ( 72 ,  73 ) and is pushed upwards by spring means ( 71 ). 
     
     
       7. The device according to  claim 2 , wherein said first oscillating support ( 50 ) rests slidingly on a concave seat ( 46 ) provided on the bottom wall ( 45 ) of said mechanism holder box ( 40 ), and has two hollow uprights ( 54 ) traversing respective holes ( 47 ) formed in said bottom wall ( 45 ) of the box ( 40 ), each hollow upright ( 54 ) being able to house a respective piston ( 55 ) and relative spring ( 57 ). 
     
     
       8. The device according to  claim 2 , wherein said mechanism holder box ( 40 ) consists of two elements ( 41 ,  42 ) assembled together. 
     
     
       9. The device according to  claim 1 , wherein an interchangeable covering element ( 80 ) is slotted on said actuation member ( 70 ). 
     
     
       10. An electrical device with axial control, comprising:
 a box-like containment structure ( 20 ) in insulating material, in which are housed:
 at least two connection terminals ( 31 ,  32 ), at least one fixed electrical contact ( 35 ) connected to one ( 31 ) of the connection terminals, 
 at least one rocker arm element ( 36 ) carrying at least one mobile electrical contact ( 37 ) and connected electrically to another ( 32 ) of the connection terminals, and 
 an axial actuation member ( 70 ) kinematically connected, by means of a first oscillating support ( 50 ), to said rocker arm element ( 36 ), so as to make it oscillate between two predetermined stable positions, 
 
 wherein, a second oscillating support ( 60 ), which is made to oscillate in one direction or in the other at each actuation of said axial actuation member ( 70 ), acts on said first oscillating support ( 50 ), said second oscillating support ( 60 ) being pivoted to said first oscillating support ( 50 ) and separated from said axial actuation member ( 70 ), 
 wherein said box-like containment structure ( 20 ) comprises a base body ( 30 ) housing said connection terminals ( 31 ,  32 ) accessible through respective holes ( 33 ,  34 ) and the corresponding fixed contact ( 35 ) and mobile contact ( 37 ), and a mechanism holder box ( 40 ) attached to the base body ( 30 ) and housing components of the device, and 
 wherein said first oscillating support ( 50 ) rests slidingly on a concave seat ( 46 ) provided on the bottom wall ( 45 ) of said mechanism holder box ( 40 ), and has two hollow uprights ( 54 ) traversing respective holes ( 47 ) formed in said bottom wall ( 45 ) of the box ( 40 ), each hollow upright ( 54 ) being able to house a respective piston ( 55 ) and relative spring ( 57 ).